Dr. William Bayer, MD
SaveEndocrinology, Diabetes & Metabolism  | Â
Male  | Â
56 y/o
Accepting new patients
Dr. William Bayer, MD is an endocrinology, diabetes & metabolism doctor who practices in Carol Stream, IL. He is 56 years old and has been practicing for 31 years. Dr. Bayer is affiliated with Northwestern Medicine Central DuPage Hospital.
Northwestern Medicine Regional Medical Group
501 Thornhill Dr
Carol Stream, IL 60188Accepted insurance
- Aetna
- Blue Cross Blue Shield of Illinois
- Cigna
- Cigna-HealthSpring
- CorVel
- Coventry Health Care
- First Health (Coventry Health Care)
- HealthLink
- HFN
- Humana
- LifeSynch
- Medicaid
- MultiPlan
- UniCare
- +Â 2Â More
Learn about Dr. Bayer
Care Philosophy
"Better people means better experiences. Our care team is committed to delivering results that change lives."...Read More
Dr. Bayer's Experience
Dr. Bayer's experience matches your search based on the following criteria:
- Based on total number of patients treated over the last 12 months
- Specializes in Endocrinology, Diabetes & Metabolism
- Board certified in Diabetes, Metabolism & Endocrinology and Internal Medicine
- No malpractice claims found
- No sanctions found
- No board actions found
1
Specialties
- Endocrinology, Diabetes & Metabolism
2
Board Certifications
- Diabetes, Metabolism & EndocrinologyAccredited by: American Board of Internal Medicine*
- Internal MedicineAccredited by: American Board of Internal Medicine*
47
Conditions Treated
- Abnormal Thyroid
- Acromegaly and Gigantism
- Adrenal Gland Diseases
- Adrenal Incidentaloma
- Adrenal Insufficiency
- Autoimmune Diseases
- Autoimmune Thyroid Diseases
- Benign Tumor
- Bone Disorders
- Breast Diseases
- Calcium Metabolism Disorders
- Cancer
- Congenital Adrenal Hyperplasia (CAH)
- Cushing's Syndrome
- Diabetes Insipidus
- Diabetes Type 1
- Diabetes Type 2
- Diabetes With Renal Manifestations
- Goiter
- Gynecomastia
- Hashimoto's Disease
- Hypercalcemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyperthyroidism
- Hypokalemia
- Hypoparathyroidism
- Hypopituitarism
- Hypothyroidism
- Kidney Disease
- Lipid Disorders
- Malaise and Fatigue
- Menstrual Disorders (incl. Dysmenorrhea)
- Multiple Endocrine Neoplasia
- Obesity
- Osteopenia
- Osteoporosis
- Parathyroid (Gland) Disease
- Phosphorus Metabolism Disorders
- Polycystic Ovarian Syndrome
- Symptomatic Menopause
- Testicular Dysfunction
- Thyroid Cancer
- Thyroid Cyst
- Thyroid Disease
- Thyroiditis
- Vitamin D Deficiency
More
2
Procedures
- Continuous Glucose Monitoring
- Diabetes Counseling
Background Check
0 Malpractice Claims
No malpractice history found for Illinois.
0 Sanctions
No sanctions history found for the years that Healthgrades collects data.
0 Board Actions
No board actions found for the years that Healthgrades collects data.
Education
- Loyola University Of Chicago / Stritch School Of MedicineMedical School | Graduated 1986
- Loyola University Medical CenterInternship Hospital | Completed
- Loyola University Medical CenterResidency Hospital | Completed
- Loyola University Medical CenterFellowship Hospital | Completed
Awards & Recognition
Awards & Honors
- Healthgrades Honor Roll
Media & Publications
Dr. Bayer has no media or publications listed.
Languages Spoken
- English
Memberships & Professional Affiliations
Dr. Bayer does not have any memberships or affiliations listed. If you are Dr. Bayer and would like to add memberships or affiliations, please update your profile.
Dr. Bayer's Reviews
Likelihood of recommending Dr. Bayer to family and friends
based on 24 total reviews (10 with comments)
Patient Comments (10)
55
-Bryan Compton in St. Charles IL. | Apr 04, 2017
Dr. Bayer is a Diabetic Endocrinologist that I have complete trust in has really turned my A1C Goal/Goals to the Positive. He is very knowledgeable in his field and he always spends appropriate time w/patient/patients. I will be 62 in December and have been battling Diabetes since 1999/2000. He has also been a big influence on how I feel about my condition-always Positive.
He has my Thanks!
Bryan Compton
55
-marge in ELK GROVE VILLAGE | Mar 29, 2017
Do not take the bad reviews seriously! Dr. Bayeris amazing & caring! So, if you need a really good doctor that cares about your health & does not set a timer when you walk in, he is your answer to getting your health back on track! I came to him when there was no one else. He cared & I am now on my way to not only answers but resolutions. He has a good heart & is a briliant doctor! If you are serious about working on your health & learning how to be healthier but need a coach; he is for you!
55
Hoffman Estates, IL | Mar 29, 2017
Dr Bayer is a no-nonsense doctor that is very knowledgable and thoruough. I have gone to him for many years before a car accident and am now able to see him again. I could not find his phone number so I looked it up. As I read the reveiws that were positive, I could relate. As I read the negative reviews I wondered what could have gone wrong. I made my appointment a little concerned. Well, I can only say that Dr. Bayer is still the caring wonderful doctor that I remember.
15
-Vb in Aurora, IL | Feb 25, 2017
He needs to retire. He's clearly mad at everything, he was 30 minutes late to an 8:00 am meeting and told me out of the gate he already didn't know what to do. He took no time to listen and understand. he's terrible, go somewhere else
15
Wheaton, IL | Feb 17, 2017
One of the worst doctors I have ever seen. Rude, disrespectful, and just plain mean. He doesn't care about patients and this was shown by his horrible bedside manner. He needs training on how to be nice to people.
55
Chicago, IL | Oct 18, 2016
Dr. Bayer is so nice. He listens and is excited when he sees me progressing in my health. Worked consistently to get my thyroid medication to the appropriate level.
15
IL | Jun 30, 2016
Rude bedside manner, rushes through, and was annoyed when I had to mention multiple health issues. He really seems to hate his job. Probably competent with thyroid issues but just too rude and unhappy!
15
Aurora, IL | Mar 05, 2016
Dr Bayer acted like a robot.
Dr Bayer made eye contact 5 seconds during the entire appointment. He spent all his time filling out forms on his computer instead of listening to any concerns I had.
His bedside manner is horrible, he is extremely unwilling to entertain other professional opinions. He was very concerned about if insurance will cover instead of the care of the patient, save yourself the frustration find a different doctor who cares about your health & issues.
55
-Linda in Aurora, IL | Feb 18, 2016
Everything I heard about Dr. Bayer from other Doctors and the general public is true. He will take the extra mile on getting to the root of your issues. I felt comfortable with his personality and concern for my health and well being.
15
Jan 13, 2016
Wouldn't recommend.
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